Choggbuster is a set of python scripts aimed at automated preprocessing of video DVDs for archival and filtering
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/*
* Copyright (C) 2000, 2001, 2002 Håkan Hjort <d95hjort@dtek.chalmers.se>
*
* The data structures in this file should represent the layout of the
* pci and dsi packets as they are stored in the stream. Information
* found by reading the source to VOBDUMP is the base for the structure
* and names of these data types.
*
* VOBDUMP: a program for examining DVD .VOB files.
* Copyright 1998, 1999 Eric Smith <eric@brouhaha.com>
*
* VOBDUMP is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation. Note that I am not
* granting permission to redistribute or modify VOBDUMP under the terms
* of any later version of the General Public License.
*
* This program is distributed in the hope that it will be useful (or at
* least amusing), but WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/* The length including the substream id byte. */
#define PCI_BYTES 0x3d4
#define DSI_BYTES 0x3fa
#define PS2_PCI_SUBSTREAM_ID 0x00
#define PS2_DSI_SUBSTREAM_ID 0x01
/* Remove this */
#define DSI_START_BYTE 1031
/**
* PCI General Information
*/
typedef struct {
uint32_t nv_pck_lbn; /**< sector address of this nav pack */
uint16_t vobu_cat; /**< 'category' of vobu */
uint16_t zero1; /**< reserved */
user_ops_t vobu_uop_ctl; /**< UOP of vobu */
uint32_t vobu_s_ptm; /**< start presentation time of vobu */
uint32_t vobu_e_ptm; /**< end presentation time of vobu */
uint32_t vobu_se_e_ptm; /**< end ptm of sequence end in vobu */
dvd_time_t e_eltm; /**< Cell elapsed time */
char vobu_isrc[32];
} pci_gi_t;
/**
* Non Seamless Angle Information
*/
typedef struct {
uint32_t nsml_agl_dsta[9]; /**< address of destination vobu in AGL_C#n */
} nsml_agli_t;
/**
* Highlight General Information
*
* For btngrX_dsp_ty the bits have the following meaning:
* 000b: normal 4/3 only buttons
* XX1b: wide (16/9) buttons
* X1Xb: letterbox buttons
* 1XXb: pan&scan buttons
*/
typedef struct {
uint16_t hli_ss; /**< status, only low 2 bits 0: no buttons, 1: different 2: equal 3: eual except for button cmds */
uint32_t hli_s_ptm; /**< start ptm of hli */
uint32_t hli_e_ptm; /**< end ptm of hli */
uint32_t btn_se_e_ptm; /**< end ptm of button select */
unsigned int zero1 : 2; /**< reserved */
unsigned int btngr_ns : 2; /**< number of button groups 1, 2 or 3 with 36/18/12 buttons */
unsigned int zero2 : 1; /**< reserved */
unsigned int btngr1_dsp_ty : 3; /**< display type of subpic stream for button group 1 */
unsigned int zero3 : 1; /**< reserved */
unsigned int btngr2_dsp_ty : 3; /**< display type of subpic stream for button group 2 */
unsigned int zero4 : 1; /**< reserved */
unsigned int btngr3_dsp_ty : 3; /**< display type of subpic stream for button group 3 */
uint8_t btn_ofn; /**< button offset number range 0-255 */
uint8_t btn_ns; /**< number of valid buttons <= 36/18/12 (low 6 bits) */
uint8_t nsl_btn_ns; /**< number of buttons selectable by U_BTNNi (low 6 bits) nsl_btn_ns <= btn_ns */
uint8_t zero5; /**< reserved */
uint8_t fosl_btnn; /**< forcedly selected button (low 6 bits) */
uint8_t foac_btnn; /**< forcedly activated button (low 6 bits) */
} hl_gi_t;
/**
* Button Color Information Table
* Each entry beeing a 32bit word that contains the color indexs and alpha
* values to use. They are all represented by 4 bit number and stored
* like this [Ci3, Ci2, Ci1, Ci0, A3, A2, A1, A0]. The actual palette
* that the indexes reference is in the PGC.
* @TODO split the uint32_t into a struct
*/
typedef struct {
uint32_t btn_coli[3][2]; /**< [button color number-1][select:0/action:1] */
} btn_colit_t;
/**
* Button Information
*
* NOTE: I've had to change the structure from the disk layout to get
* the packing to work with Sun's Forte C compiler.
* The 4 and 7 bytes are 'rotated' was: ABC DEF GHIJ is: ABCG DEFH IJ
*/
typedef struct {
unsigned int btn_coln : 2; /**< button color number */
unsigned int x_start : 10; /**< x start offset within the overlay */
unsigned int zero1 : 2; /**< reserved */
unsigned int x_end : 10; /**< x end offset within the overlay */
unsigned int auto_action_mode : 2; /**< 0: no, 1: activated if selected */
unsigned int y_start : 10; /**< y start offset within the overlay */
unsigned int zero2 : 2; /**< reserved */
unsigned int y_end : 10; /**< y end offset within the overlay */
unsigned int zero3 : 2; /**< reserved */
unsigned int up : 6; /**< button index when pressing up */
unsigned int zero4 : 2; /**< reserved */
unsigned int down : 6; /**< button index when pressing down */
unsigned int zero5 : 2; /**< reserved */
unsigned int left : 6; /**< button index when pressing left */
unsigned int zero6 : 2; /**< reserved */
unsigned int right : 6; /**< button index when pressing right */
vm_cmd_t cmd;
} btni_t;
/**
* Highlight Information
*/
typedef struct {
hl_gi_t hl_gi;
btn_colit_t btn_colit;
btni_t btnit[36];
} hli_t;
/**
* PCI packet
*/
typedef struct {
pci_gi_t pci_gi;
nsml_agli_t nsml_agli;
hli_t hli;
uint8_t zero1[189];
} pci_t;
/**
* DSI General Information
*/
typedef struct {
uint32_t nv_pck_scr;
uint32_t nv_pck_lbn; /**< sector address of this nav pack */
uint32_t vobu_ea; /**< end address of this VOBU */
uint32_t vobu_1stref_ea; /**< end address of the 1st reference image */
uint32_t vobu_2ndref_ea; /**< end address of the 2nd reference image */
uint32_t vobu_3rdref_ea; /**< end address of the 3rd reference image */
uint16_t vobu_vob_idn; /**< VOB Id number that this VOBU is part of */
uint8_t zero1; /**< reserved */
uint8_t vobu_c_idn; /**< Cell Id number that this VOBU is part of */
dvd_time_t c_eltm; /**< Cell elapsed time */
} dsi_gi_t;
/**
* Seamless Playback Information
*/
typedef struct {
uint16_t category; /**< 'category' of seamless VOBU */
uint32_t ilvu_ea; /**< end address of interleaved Unit */
uint32_t ilvu_sa; /**< start address of next interleaved unit */
uint16_t size; /**< size of next interleaved unit */
uint32_t vob_v_s_s_ptm; /**< video start ptm in vob */
uint32_t vob_v_e_e_ptm; /**< video end ptm in vob */
struct {
uint32_t stp_ptm1;
uint32_t stp_ptm2;
uint32_t gap_len1;
uint32_t gap_len2;
} vob_a[8];
} sml_pbi_t;
/**
* Seamless Angle Information for one angle
*/
typedef struct {
uint32_t address; /**< offset to next ILVU, high bit is before/after */
uint16_t size; /**< byte size of the ILVU pointed to by address */
} sml_agl_data_t;
/**
* Seamless Angle Information
*/
typedef struct {
sml_agl_data_t data[9];
} sml_agli_t;
/**
* VOBU Search Information
*/
typedef struct {
uint32_t next_video; /**< Next vobu that contains video */
uint32_t fwda[19]; /**< Forwards, time */
uint32_t next_vobu;
uint32_t prev_vobu;
uint32_t bwda[19]; /**< Backwards, time */
uint32_t prev_video;
} vobu_sri_t;
#define SRI_END_OF_CELL 0x3fffffff
/**
* Synchronous Information
*/
typedef struct {
uint16_t a_synca[8]; /**< offset to first audio packet for this VOBU */
uint32_t sp_synca[32]; /**< offset to first subpicture packet */
} synci_t;
/**
* DSI packet
*/
typedef struct {
dsi_gi_t dsi_gi;
sml_pbi_t sml_pbi;
sml_agli_t sml_agli;
vobu_sri_t vobu_sri;
synci_t synci;
uint8_t zero1[471];
} dsi_t;